Daikin IM 735-4 Manual
Installation and Maintenance Manual IM 735-4
Group: Controls
Part Number: IM 735
Date: March 2017
MicroTech®II Chiller
LonWorks®Communication Module
ACZ Air-Cooled Scroll Condensing Unit
AGS Air-Cooled Global Screw
AGZ Air-Cooled Global Scroll
HDC Water-Cooled Dual-Compressor Centrifugal, Heat Recovery
HSC Water-Cooled Single-Compressor Centrifugal, Heat Recovery
TGZ Templier®Water Heater
TSC Water-Cooled Single-Compressor Centrifugal, Templier®
WCC Water-Cooled Centrifugal, Dual Compressor Series Counterow
WDC Water-Cooled Centrifugal, Dual-Compressor
WGS Water-Cooled Global Screw
WGZ Water-Cooled Global Scroll
WMC Water-Cooled Centrifugal, Magnetic Bearing
WPV Water-Cooled Centrifugal, Single-Compressor
WSC Water-Cooled Centrifugal, Single-Compressor
IM 735-4 • MICROTECH II CHILLER UNIT CONTROLLER 2 www.DaikinApplied.com
Introduction..................................3
Revision History ............................3
Notice ...................................3
Software Revision ..........................3
Limited Warranty ...........................3
Reference Documents .......................3
Hazardous Information Messages ..............4
Recognize Safety Symbols, Words and Labels ..4
Features..................................4
..............................4
Component Data .............................5
Light Emitting Diodes (LEDs)..................5
Network Connector................5
8-Pin Header ..............................5
Service Pin................................5
Neuron ID.................................6
Transceiver ...............................6
Bus Termination ............................6
...................6
Installation...................................7
Installation and Mounting ......................7
Field Installation Kit .........................7
Tools Required .............................7
Installing a new Communication Module .........7
Replacing a Communication Module ............9
10
Set up the Unit for Network Control .............10
Network Setup for Centrifugal Chillers..........10
Network Setup for all other Chillers ............10
Network Addressing................10
External Interface File (XIF) and NXE Files ......11
...................11
Commissioning .............................11
.......................11
............................12
Troubleshooting.............................12
General .................................12
Network Wiring and Connections..............12
Bus Terminators .........................12
Network Performance ......................12
Field Replacement and Support ...............13
www.DaikinApplied.com 3 IM 735-4 • MICROTECH II CHILLER UNIT CONTROLLER
This manual contains information regarding the network
integration system used with MicroTech®II unit controllers on
Daikin Applied chillers. It describes how to install or replace a
communication module on a MicroTech II chiller
unit controller. It also explains how to set network parameters
and establish communication between the chiller and the
network.
IM 735-0 Jan 2003 Initial release.
IM 735-1 May 2005 Corrections to Figures 6 and 7. Added WGS,
WMC, HSC, TSC and HDC docs to Reference
Documents section and cover page.
IM 735-2 Nov 2005 Added setup for screw and scroll (non-
centrifugal) chillers.
IM 735-3 Dec 2010 Added part number to Replacement Parts
list for new version of unit controller and
compatible communication module (pCO3).
Updated table on p. 12 and chiller models on
cover page.
IM 735-4 Mar 2017 Updated Daikin Applied brand logo and
associated references, document part
numbers, parts list
© 2017 Daikin Applied, Minneapolis MN. All rights reserved
throughout the world
Daikin Applied reserves the right to change any information
contained herein without prior notice. The user is responsible
for determining whether this product is appropriate for his or
her application.
™ ® The following are trademarks or registered trademarks of
their respective companies: Echelon, LonWorks, LonMark, and
and MicroTech II from Daikin Applied.
This document supports communication module
otherwise indicated.
Consult your local Daikin Applied representative for warranty
www.DaikinApplied.com.
Number Title
LonMark®
International 078-0120-01F
LonMark Layers
1–6 Interoperability
Guidelines, Version 3.0
www.lonmark.
org
LonMark
International 078-0120-01F
LonMark Application
Layer Interoperability
Guidelines, Version 3.3
www.lonmark.
org
Echelon®
Corporation 078-0156-01G
®FTT-10AFree
Topology Transceiver
Users Guide
www.echelon.
com
LonMark
International 8040_10
LonMark Functional
1.0
www.lonmark.
org
Daikin Applied IMM AGS
MicroTech II Air-Cooled
Screw Chiller Installation
and Maintenance Manual
www.
DaikinApplied.
com
Daikin Applied IOMM ACZ/
AGZ
MicroTech II Air-Cooled
Condensing Unit
Installation, Operation,
and Maintenance Manual
www.
DaikinApplied.
com
Daikin Applied IOMM ACZ
MicroTech II Air-Cooled
Condensing Unit
Installation, Operation,
and Maintenance Manual
www.
DaikinApplied.
com
Daikin Applied IOMM AGZ
MicroTech II Air-Cooled
Scroll Chiller Installation,
Operation, and
Maintenance Manual
www.
DaikinApplied.
com
Daikin Applied IOMM WGZ
MicroTech II Water-
Cooled Scroll Chiller
Installation Manual
www.
DaikinApplied.
com
Daikin Applied IOMM WPV
MicroTech II Centrifugal
Chiller Installation,
Operation, and
Maintenance Manual
www.
DaikinApplied.
com
Daikin Applied IOMM
WSCWDC
MicroTech II Chiller Unit
Controller Installation,
Operation, and
Maintenance Manual
www.
DaikinApplied.
com
Daikin Applied OM AGS
MicroTech II Air-Cooled
Screw Chiller Operating
Manual
www.
DaikinApplied.
com
Daikin Applied OM
CentrifMicro II
MicroTech II Unit
Controller for Centrifugal
Operating Manual
www.
DaikinApplied.
com
Daikin Applied OM WGS
MicroTech II Water-
Cooled Screw Chiller
Operating Manual
www.
DaikinApplied.
com
Daikin Applied OMM TGZ
TGZ Heat Recovery
Water Heaters Operating
Manual
www.
DaikinApplied.
com
Daikin Applied OM WMC
MicroTech II Magnetic
Bearing Compressor
Chiller Operating Manual
www.
DaikinApplied.
com
Daikin Applied IOMM TSC
Single Compressor
Centrifugal Installation,
Operation, and
Maintenance Manual
www.
DaikinApplied.
com
IM 735-4 • MICROTECH II CHILLER UNIT CONTROLLER 4 www.DaikinApplied.com
Recognize Safety Symbols, Words and Labels
The following symbols and labels are used throughout this
manual to indicate immediate or potential hazards. It is the
owner and installer’s responsibility to read and comply with
all safety information and instructions accompanying these
symbols. Failure to heed safety information increases the
risk of property damage and/or product damage, serious
personal injury or death. Improper installation, operation and
maintenance can void the warranty.
Cautions indicate potentially hazardous situations, which can result in
personal injury or equipment damage if not avoided.
Static sensitive components. Can cause equipment damage.
Discharge any static electrical charge by touching the bare metal inside the
control panel before performing any service work. Never unplug cables,
circuit board terminal blocks, or power plugs while power is applied to the
panel
Warnings indicate potentially hazardous situations, which can result in
property damage, severe personal injury, or death if not avoided.
Dangers indicate a hazardous situation which will result in death or
serious injury if not avoided. Electric shock hazard. Can cause personal
injury or equipment damage. This equipment must be properly grounded.
Connections and service to the MicroTech II Unit Controller must be
performed only by personnel knowledgeable in the operation of the
equipment being controlled.
This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with this instruction manual,
may cause interference to radio communications. It has been tested and
found to comply with the limits for a Class A digital device, pursuant to
part 15 of the FCC rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a
commercial environment. Operation of this equipment in a residential area
is likely to cause harmful interference in which case the user will be required
to correct the interference at his or her own expense. Daikin disclaims any
liability resulting from any interference or for the correction thereof.
The communication module connects the
MicroTech II chiller unit controller to a building automation
system (BAS). This interface enables the exchange of
variables between the unit controller and a
Operating Network or LON.
Features
• Integration into a building automation and control system
via
• Installed with LonMark®
• Network controller (Neuron chip) handles the complete
network protocol and user application
• LEDs that indicate communication status and network
activity
• commissioning
tools such as Echelon’s®LonMaker®software
• Circuit board components enclosed in protective housing
and inserts into the unit controller
The following section provides a summary of technical data
and conformance to agency listings.
Dimensions 2 ” x 1 ” (60 x 30 mm)
Temperature 32 - 149°F (0 - 65°C)
Humidity <80% RH
Temperature -4 - 158°F (-20 - 70°C)
Humidity <80% RH
Power DC 5 V (+5% / –5%)
Network
Network cable LON interface: Plug-in terminals 2 wires,
interchangeable
Bus connection/
Transceiver Galvanically isolated, 78k baud TP/FT-10 transceiver
data
memory
Network connector 3-pin (GND, A, and B) network connector plug
Ferrite enclosure Snap-on ferrite core as optional attachment to the
network cable for noise reduction
US UL 873
Canada CSA C22.2 No. 24-93
www.DaikinApplied.com 5 IM 735-4 • MICROTECH II CHILLER UNIT CONTROLLER
The communication module is a printed circuit
board that inserts directly into the serial card slot of the
MicroTech II chiller unit controller. Figure 1 shows the
communication module when fully inserted. Figure 2 shows the
important features of the communication module circuit board,
which are described in the following section.
Communication Module Attached to Unit Controller
Communication Module Main Features
The communication module has a Service LED and an
Anomaly LED to indicate communication activity and status
of the communication module (Figure 2). These
indicators cannot be seen when the module is installed in
the controller. Table 1 describes the color and activity of both
LEDs.
LED Activity
Function
Lights when the service-pin is shorted
Flashes (1 second) during a Wink command
Flashes (1/2 second) during commissioning
Blinking when the communication module is not
commissioned
Flashes (1 second) when the communication
module has no application program
Lights when there is a connection error or other
issue related to the communication module
The P8 network connector is the physical connection between
the communication module and the FTT-10A bus.
Two pins are used for this purpose as indicated below and
shown in Figure 2.
Pin Function
GND No Connection
A FTT-10A
B FTT-10B
The 8-pin header connects the unit controller to the
communication module.
The service pin generates a service-pin message that contains
the Neuron®
(Figure 2). The service pin message is used to commission the
communication module by broadcasting it on the
network.
The service pin consists of two terminals next to the network
connector that protrude below the cover on the serial card
port of the unit controller. To activate the service pin, short the
two pins together for an instant with the tip of a screwdriver or
similar tool.
IM 735-4 • MICROTECH II CHILLER UNIT CONTROLLER 6 www.DaikinApplied.com
The basis of the communication module is an
Echelon Neuron integrated circuit (Neuron chip). Every Neuron
chip has a unique 48-bit Neuron ID or physical address.
The Neuron ID can be used to address the device on the
network.
The communication module is equipped with
an Echelon Free Topology Transceiver (FTT-10A) to enable
network communication. The transceiver supports free
network topology (including ring, star, and daisy-chain)
using unshielded, twisted pair cable with polarity insensitive
connections at each node. Free topology segments require
termination for proper transmission performance.
Data transmission rate on the network is 78 kbps (baud).
Bus termination resistors are used for properly terminating
a network based on twisted pair cabling with attention to
impedance.
Refer to Echelon FTT-10A
Transceiver User’s Guide for details regarding
terminations, impedance, and other requirements
(www.echelon.com).
Value
Network topology Flexible Free Topology
Neuron chip processor 3150
Free Topology Transceiver
(FTT-10A) 50051
Cable types TIA Category 5 (recommended)
Maximum cable length 1476 ft (450 m) per segment (total of all lines)
Maximum node separation 820 ft (250 m)
Data transmission Two-wire, half duplex
Data transmission rate 78 kbps (baud)
Bus terminator
Free topology: use one (1) 52.3 bus terminator
at the busiest point of the network.
Daisy chain or standard line (dual) topology: use
two (2) 105 bus terminators at the end of both
network segments.
Repeaters and routers
Repeaters and router are typically used when the
entire cable length in a given segment exceeds
1476 ft (450 m) in a free topology or 2953 ft
(900 m) in a line topology.
Each trunk can have at maximum one physical
repeater. Repeaters and routers may not be used
in a ring topology. They must be placed before
the network’s ring port.
www.DaikinApplied.com 7 IM 735-4 • MICROTECH II CHILLER UNIT CONTROLLER
communication module or replace an existing
module on the MicroTech II chiller unit controller.
This equipment contains sensitive electronic components that may
be damaged by electrostatic discharge from your hands. Before you
handle a communication module, you need to touch a grounded object,
such as the metal enclosure, in order to discharge the electrostatic
potential from your body.
.
This equipment must be properly grounded. Only personnel
knowledgeable in the operation of the equipment being controlled must
perform connections and service to the unit controller.
The
with the following items:
• The communication module circuit board and
plastic cover
• Network connector
• Ferrite enclosure (for noise reduction, if necessary)
• This manual (IM 735)
•
Figure 4
• Needle-nose pliers or similar tool as shown in Figure 5
Follow these steps to install a communication
module on the unit controller.
1. Remove power from the unit controller.
2. Locate the serial card slot on the unit controller
(Figure 3).
3. Remove the cover if it has not already been removed.
from one end (Figure 4).
Serial Card Slot in Unit Controller
Remove Serial Card Slot Cover
4. Using a needle-nose pliers or similar tool, remove the
pre-cut plastic part of the serial card cover, making the
hole for the network connector (Figure 5 and Figure 6).
Remove Plastic Cover
IM 735-4 • MICROTECH II CHILLER UNIT CONTROLLER 8 www.DaikinApplied.com
Serial Card Cover Removed
5. Grasp the communication module, with the network
connector on the underside. The 8-pin header must
mate to the 8-pin plug in the unit controller. The plug has
a guide on each end to direct it into the mating guide
on the communication module header. Figure 7 shows
the serial card slot with the 8-pin plug that mates to the
header on the communication module.
6. Insert the communication module, pointed up, into the
slot. Keeping it level, roll the module into position as
you guide it into the slot, feeling the connectors line up
(Figure 8, Steps 1 and 2).
7. When you feel the connectors align, press the
communication module into the plug. Verify that the
Figure 8, Step 3).
8. Insert the plug-in connector to the communication
module.
9.
the serial card slot. Slip the cover over the network
connector plug (Figure 9).
Serial Card Slot Connection
Inserting the Communication Module
www.DaikinApplied.com 9 IM 735-4 • MICROTECH II CHILLER UNIT CONTROLLER
Communication Module Inserted
10. Insert the network cable connector into the
communication module (Figure 10 and Figure 11):
a. Connect one wire of the network cable to Pin A of
the connector plug.
b. Connect the other wire to Pin B of the connector
plug. Note that no wire is connected to the GND
Pin.
11. Attach the ferrite enclosure (optional - see Figure 12).
Follow these steps to remove an existing communication
module from unit controller and replace it with a new one.
1. Remove power from the unit controller.
2. Locate the serial card slot on the unit controller
(Figure 3) and pull the network cable connector from the
communication module (Figure 9).
3. Remove the cover from the serial card slot. Use a small
Figure 4).
4. Grasp the communication module, with the network
connector on the underside. The 8-pin header must
mate to the 8-pin plug in the unit controller. The plug has
a guide on each end to direct it into the mating guide
on the communication module header. Figure 7 shows
the serial card slot with the 8-pin plug that mates to the
header on the communication module.
communication module into the connector than
seeing the connectors mate.
5. Insert the communication module, pointed up, into the
slot. Keeping it level, roll the module into position as
you guide it into the slot, feeling the connectors line up.
(Figure 8, Steps 1 and 2).
6. When you feel the connectors align, press the
communication module into the connector. Verify that
Figure 8,
Step 3).
7. Replace the cover on the serial card slot. Slip the cover
over the network connector plug (Figure 9).
8. Insert the network cable connector into the
communication module (Figure 10 and Figure 11):
a. Connect one wire of the network cable to Pin A of
the connector plug.
b. Connect the other wire to Pin B of the connector
plug. Note that no wire is connected to the GND
Pin.
Network Cable Routing and Connections
Network Connection Detail
9. Attach the ferrite enclosure (optional - see Figure 12).
Ferrite Enclosure
IM 735-4 • MICROTECH II CHILLER UNIT CONTROLLER 10 www.DaikinApplied.com
After the communication module has been
unit controller for integration into a building automation system
(BAS). Follow one of the two procedures below to set the
network protocol from the MicroTech II chiller unit
controller keypad or touchscreen.
1. Disable the chiller. The chiller should not be operating
while performing this procedure.
2. At the chiller unit controller keypad display:
a. Change the Set/Unit Setpoint menu Protocol = to
.
If using the OITS panel, in the SETPOINTS/MODE
screen, set the #9 setpoint = to
b. Enter the password of “2001.”
c. As needed in the Set/Unit Setpoint menu, change
Source = to Network.
If using the OITS panel: as needed in the
SETPOINTS/MODE screen, change the #3 setpoint,
Control Source = to BAS.
3. Re-enable the chiller.
4. Verify that the chiller is operational from the BAS
interface.
1. Disable the chiller. The chiller should not be operating
while performing this procedure.
2. At the chiller unit controller keypad display:
a. Set the Protocol = to in the applicable
menu screen.
b. Use Table 1 to determine the operator password
c. Enter the password.
3. As needed in the Set/Unit Setpoint menu, change
Source = to Network.
4. Re-enable the chiller.
5. Verify that the chiller is operational from the BAS
interface.
Once the protocol has been set, proceed to the next section for
addressing details and commissioning instructions.
Password Menu Screen
Password
AGZ-A 12 2001
ACZ-A 6 2001
AGZ-B
AGZ-C 9 2001
ACZ-B 7 2001
AGS-A
AGS-B 12 8945
AGS-C 16 8453
AGS-D 17 8745
WGS 15 8745
WMC WSC
WDC WCC
WPV HSC
HDC TSC
14 2001
WGZ/TGZ 10 2001
The communication module, together with the unit
controller, support the network design, wiring, addressing, and
commissioning rules of the LonMark standard.
parts:
1. The Domain ID - designates the domain. Devices must
be in the same domain in order to communicate with
each other.
2.
devices that are on a single channel or a set of channels
connected by repeaters. There may be up to 255
subnets in a domain.
3.
subnet.
A group is a logical collection of devices within a domain.
Groups are assembled with regard for their physical location
in the domain. There may be up to 256 groups in a domain. A
group. There may be any number of devices in a group when
unacknowledged messaging is used. Groups are limited to 64
devices if acknowledged messaging is used.
domain.
Refer to the LonMark Application Layer Interoperability
Guidelines Version 3.3, LonMark Layers 1-6 Interoperability
Guidelines Version 3.3 (www.lonmark.org) and
FTT-10A Free Topology Transceiver Users Guide
(www.echelon.com).
www.DaikinApplied.com 11 IM 735-4 • MICROTECH II CHILLER UNIT CONTROLLER
Files
The communication module is self-documenting so
that any network management tool can be used for
with the extension .XIF) is required, along with a
network management tool, so the device can be designed and
into the communication module.
The
the Standard Network Variable Types (SNVTs) and Standard
the MicroTech II chiller unit controller into the variables and
parameters used by the network. The software
Follow these steps to commission the
communication module:
1. Verify the communication module is correctly inserted
into the unit controller serial card slot.
2. Connect the twisted pair cable to the communication
module’s network connector Pins A and B (Figure 11).
3. Download XIF, NXE, and Resource Files from either
www.DaikinApplied.com or www.lonmark.org.
4. Use a
Echelon®LonMaker®, to map the device Neuron ID to
the domain/subnet/node logical addressing scheme
when it creates the network image, the network address,
and connection information.
5.
device broadcast message.
6. Activate the service pin. Do this by short-circuiting the
two pins for an instant using the tip of a screwdriver or
similar tool.
At this point, the initialization process begins and
the Service LED activates by turning a steady green.
Refer to the Light Emitting Diodes (LEDs) section for
a detailed description the Service LED and Anomaly
LED activity.
After the unit controller protocol has been set to
and the communication module has been commissioned,
to enable control or monitoring of chiller operation via the
network. The parameters may be changed from the BAS or
the unit controller keypad/display.
If you wish to change default parameter values from the
unit controller keypad/display or OITS panel, refer to the
MicroTech II Chiller Unit Controller Operation Manual
(Reference Documents) for keypad/display menu options
and instructions. Also refer to the MicroTech II Chiller Unit
Controller Protocol Document, ED 15062 for descriptions
of variables available for BAS integration
(www.DaikinApplied.com).
IM 735-4 • MICROTECH II CHILLER UNIT CONTROLLER 12 www.DaikinApplied.com
Follow these procedures if you can control the MicroTech II
chiller unit controller from the keypad/display, but are not able
to communicate with the chiller via the network:
→ Review the Installation and Mounting section of this
correctly.
→ If the communication module is installed but the
Service LED is not active when the service pin is
shorted, remove the module and then follow the steps
provided in the Installing a new Communication Module
section. If the issue persists or the Anomaly LED is red,
replace the module.
→ Verify that Control Source is set to BAS and that the
network protocol is set to see Set up the
Unit for Network Control).
→ Check for faulty cable connectors at the chiller unit
controller and throughout the network.
→ Determine if there is a network ground fault.
→ For network terminal connections, twist the wires
together a minimum of three times.
→
types on the same bus.
→ Follow the bus length limits for the cable type.
→
→ Make sure that the network trunk avoids strong
sources of electromagnetic interference (EMI).
→ Verify that the network trunk is not located near a DC
load switch (relay).
Bus Terminators
Errors from bus termination can have the following results:
• Signal level too low could indicate the wrong bus
terminator or too many terminators.
• Signal level too high could indicate a high-level signal
terminator, or that bus terminators are placed incorrectly.
→ Verify that the correct terminators are used based on
your network topology.
terminator at busiest point of network.
terminators at both network ends.
→
intermittent, or the trunk is experiencing “noise,” it
may be necessary to use a network protocol analyzer
or oscilloscope to determine the source of poor
performance.
→
Contact the Daikin Applied Controls Customer Support Group
at 866-462-7829 for additional assistance, if necessary.
www.DaikinApplied.com 13 IM 735-4 • MICROTECH II CHILLER UNIT CONTROLLER
There are two versions of the communication
module. The version depends on the model of MicroTech II unit
controller (pCO2 or pCO3) installed on the chiller.
The pCO2 communication module has
been obsoleted and replaced by the pCO3
communication module.
This means:
1. If a new communication module needs
to be installed on a pCO2 unit controller, both the unit
controller and the communication module
need to be upgraded to the newer pCO3 version.
2. If an existing communication module needs
to be replaced on a pCO2 unit controller, both the unit
controller and the communication module
need to be upgraded to the newer pCO3 version.
3. To add or replace a communication
module on a pCO3 unit controller, order just the pCO3
communication module. It is not necessary to upgrade
the pCO3 unit controller if it is functioning properly.
MicroTech II unit controller is installed on the chiller. Figure 13
shows that the pCO2 unit controllers have DIP switches
located above the keypad display, while the pCO3 controllers
do not have DIP switches (Figure 14). Refer to Table 3
for Daikin Applied part numbers. Note that the previous
been replaced with a single pCO3 kit number.
pCO2 Chiller Unit Controller
pCO3 Chiller Unit Controller
Replacement Parts List
MicroTech II Communication Module
kit - pCO3
Kit includes: communication module,
network connector, ferrite enclosure, and IM 735
332608501 (replaces
former PN 350147409)
MicroTech II Communication Module
kit - pCO2
332608501 (replaces
former PN 350147401)
Contact the Daikin Applied Aftermarket group for chiller unit
www.DaikinApplied.com or call
800-37PARTS (800-377-2787).
IM 735-4 (03/17) ©2017 Daikin Applied | (800) 432–1342 | www.DaikinApplied.com
Daikin Applied Training and Development
Now that you have made an investment in modern, ecient Daikin equipment, its care should be a high
priority. For training information on all Daikin HVAC products, please visit us at www.DaikinApplied.com
and click on Training, or call 540-248-9646 and ask for the Training Department.
Warranty
All Daikin equipment is sold pursuant to its standard terms and conditions of sale, including Limited
Product Warranty. Consult your local Daikin Applied representative for warranty details. To nd your
local Daikin Applied representative, go to www.DaikinApplied.com.
Aftermarket Services
To nd your local parts oce, visit www.DaikinApplied.com or call 800-37PARTS (800-377-2787).
To nd your local service oce, visit www.DaikinApplied.com or call 800-432-1342.
This document contains the most current product information as of this printing. For the most up-to-date
product information, please go to www.DaikinApplied.com.
Products manufactured in an ISO Certied Facility.
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